On Mar 6, 2009, at 8:44 AM, Klimchuk, James A. (GSFC-6710) wrote:
By the way, I do NOT believe that observations necessarily point to low altitude heating. My view is that observations are consistent with both low altitude and high altitude heating. Perhaps this should be a topic for Loops IV.
Jim
There is no way around to heat up first chromospheric material to fill coronal loops to produce the enhanced soft X-ray and EUV emission we see from coronal loops (like in flares). Any heating mechanism that heats directly in the corona, does not increase the local density, so we would not see any loops.
Markus
____________________________________________ Dr. Markus J. Aschwanden Solar & Astrophysics Laboratory Lockheed Martin Advanced Techology Center Org. ADBS, Bldg. 252 3251 Hanover St., Palo Alto, CA 94304, USA Phone: 650-424-4001, FAX: 650-424-3994 URL: http://www.lmsal.com/~aschwand/ e-mail: aschwanden@lmsal.com _______________________________________ ____________________________________